Out of curiosity this gun has just come back from re-proof for nitro. Same test as modern definitive proof. This is all that is required:



The firing pins are struck by small copper hammers on some sort of cradle. It is a Charles Smith of Newark-on-Trent, Nottinghamshire and is a 12 bore with damascus barrels. It passed o.k. Now to put the thing back together after browning the barrel and blacking some other parts. Lagopus.....